| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1727 |
96.7%
|
| 1 | Once | 35 |
2%
|
| 2 | Few | 17 |
1%
|
| 3 | Many | 7 |
0.4%
|
| Sysmiss | 4202 |